Corner-bead-positioning device



Dec. 6, 1927.

1,651,712 C. A. KARELIUS CORNER BEAD POSITIONING DEVICE Filed June 121926 2 Sheets-Sheet l Tia .5.

Dec. 6, C. A. KARELIUS CORNER BEAD POSITIONING DEVICE Fil n 12. 1926 2Sheets-Sheet 2 Patented Dec. 6, 192?.

pairs are CAR-L A. renames; or :eAsADENa, CALIFORNIA. i

' CORNER-BEAD-POSITIONIING DEVICE.

Application filed June 12,

My invention relates to corner bead positioning devices of the characterelllbOdlGfl in my co-pendmg application Serial No.

95,354, filed March 17, 1926.

alt is a purpose of my present invention to i-provide' a corner beadpositioning device by which the corner beads of single. or double sidepilasters'can, with facility and dispatch,

' be properly positioned bothvertically and completed. 1

features thereof in claims.

In thedrawings Figure 1' is a view showing in side elevation one form ofcorner bead positioning device embodying myinvention in applied positionto a pair of corner beads;

Figure 2 is a view showingin plan section a pilaster having appliedthereto the posi tioning device shown in Figure 1; l

Figures 3 and 4 are sectional views taken on the lines 3+3 and 44 ofFigure 2;

v Figure 5 is a sectional view taken on the line 55. of Figure l; I

Figure 6 is a view similar to Figure2,'- showing'a modified form of myinvention in applied position to a single side pilaster.

' a, Similar reference characters refer to similar parts-in each of theseveral' views. I

Referring specifically to the drawings,and

particularly to Figure 1, my invention in its present embodimentcomprises a pair of units, and as the constructlon of the two units 'isidentical a description of one will integral with or welded to thearml'fl while ing'a set screw 18. The arm is constructed from a channelbar which may be formed the latter has the cross sectional contour shownin Figure'fl." The frame Fv comprises a relatively short arm 19 of thesame construction as the arm 15-and provided witha clamping screw 20.The frame F also includes along arm 21 m the form of a I 7 channel barof suclidimensions as to he slidablyre'c eived within thearm 17 of theframe F and tereagh the medium of the setserew' 1926. Serial no;115,565.

18 the arm21 is capable of being locked in any longitudinally adjustedposition within the arm 17 so as to vary the parallel relation of thearm 19 with respect tothe arm-15. I x

The arms 15 and 17 have slidable thereon so i,

brackets 22 and 23, respectively, capable 'of' being locked in anyadjusted position by means of screws 24 and 25, respectlvely.

These brackets co-operatewith the'arms in providing clamp for securing acorner head? to the frame inthemanner shown I in Figure 2. By virtue ofthefact that they are adjustable, it will be understood that'thebrackets are capable of clamping the vari- 011381285 of corner beads.The frame F 'is provided with a simllar bracket 26' adjustable on thearm 19 and capable of being locked in adjusted position by'a screwv27iThis bracket 26 isadapted to co-operate with abra'cket 28 which, asshown in Figure '5, is disposed within thearm 21 and is slotted'toreceive a' screw 29 by which the bracket can be locked in longitudinallyadjusted po-- sition on-the arm. The head ofithe bracket bracket B inthe frame F.

In practice,the two units are associated,

with a pair of corner beads B and'.B.".in the manner illustrated inFigure 1, the'beads being securely clamped by means ofthe brackets, 22and 23, etc., thus servingto' maintain the units in spaced relation. 7The."

device is now ready to be applied to a double face pilaster in themanner shown in Figure 2, with the clamping screws .16 and 20 disposedto engage the sides of-the p'i- I laster and when screwed into clampingenY- i gagementwith the pilaster to secure the two units in horizontal,position, oneabove the other, and to thus-properly position the cornerbea dswith respect to the corners of the pilasterr Various methods ofpositioning the twounits'to effect, the proper supporting of'the cornerbeads may-be'employed; By firstdetermining the points at whichthe-clamping screws 16 and 20 of theupperv units are to engage the sidesof the pilaster, through the use of a plumb bob, thepoint's at which theclamping screws of the lower a unit engage the sides 'ofthe. pilaster-can be resell; determined thus; eeitienin the We Y i ,P g

units so that the corner beads will occupy perpendicular positions atthecorners of the pilaster.

When once clamped to the pilaster the two units serve to rigidly.support the corner beads in proper position atthe cornersof the pilasterso that the plaster can be applied in the usual manner on the cornerners ofthe pilaster.

beads, and thus'be properly positioned within the plaster. r

Itwill be understood that the two units arevcapable of adjustment toaccommodate the device to pilastersof different sizes, and as theco'rner bead brackets are likewise capableof adjustment to accommodatedifferent size beads, it will be manifest that the device in itsentirety is capable of universal use in its'adaptation tovarious slzesof pilasters and the holding of corner beads 1n variousspaced positionswith respect to the cor- ,Referring now to Figure 6, I have here shown amodification of the device, in which the frames F of each ofthe unitsonly is employed, and in conjunctionwith a frame F having a long arm 31slidable in the arm 17' and capable of beingiocked in any ad justedposition by the screw 18, and a short arm 32 adapted to engage a stripof plaster of Paris 33 which may be applied to the front of a singleside pilaster as shown in Figure 6. The flat side of the strip 33 ismade perpendicular so as to form an abutment against which the'short arm32 of each frame F depends, and with the two'units embracing a cornerbead B as shown in Figure 6, it will be clear that the two unitscooperate in supporting the corner bead in perr. P i

pendicular position with respectto the corner of the pilaster and tosecurelyrhold the same in applied position whilethe plaster is beingapplied. 7

Although I have herein shown and described only two forms of cornerbead-positioning devices embodying my in'vention, it is 'to beunderstood that. various changes and modifications may be made thereinwithoutdeparting from the spirit of the invention,

and the scope and spiritof the appended claims. 7

I claim: 1. A device for positioning corner beads with respect topilasters comprising means adjustable to clamp a-pilaster so as to bewith respect to pilasters comprising a pair of L-shaped framesextensibly connected in the form of a U, clamping screws carried by theparallel portions of the frames, and corner bead engaging bracketsarranged in pairs on the framesand coacting to clamp corner beads to theframe,

4-. A device as embodied in claim 3, wherein one of the brackets of onepair is provided with a shouldered surface alined With'respect to theinner surface of one arm of the other frame for the purpose described.

5. A device for positioning corner beads with respect to pilasterscomprising a pair of frames extensiblyr associated with each vother andhavinglaterally projecting-por tions betweenwhich a pilaster is adaptedto be received, means on said POlSiJlOIlSblY which the frames areadapted to be clamped to the pilaster, and means on the frames for supporting corner beadson the frames 1n proper position with respect tocornerslo'f the pilas-' ter.

6. A device for positioning corner beads with respect topilastersrcomprising means contractible to engage a pilaster, means forclamping the first means to the pilaster so that the first means will besupported in elevated position on the pilaster,and means on the firstmeans for holdinga corner bead K thereon to properly positionthe latterwith respect to a corner of the pilaster.

7, A device for positioning corner-beads with respect to p ilasters asembodied in claim 5 wherein the last means comprises brackets arrangedin pairs and slidable on the frames for engagementv with the cornerbeads, and means by whichthe brackets are adaptedto be secured to'theframe in'clamping' relation to the cornerbeadsL p 8. A device forpositioning corner beads with respect to pilasters comprising a. palr'ofsubstantially L-shaped frames telescopically associated'with each'other'in-the'form of a U, clamping screws carried by the parallel portions ofthe frames, corner bead engaging brackets slidable'on the frames, saidbrackets arranged in pairs with the brackets of each pair co-acting toclamp corner beads therebetween, and means for securing'the brackets tothe frames in clamping relation to the corner beads. 1

9. A device for positioning corner beads with respect to pilasterscomprising means adjustable to engageand support itself on the pilastor,means for clamping a corner bead to the first means and comprisingbrackets movably mounted onthe first means and between which the corner beadis adapted to be interposed, and means for securing the brackets againstmovement in clamping relation to the corner bead so as to support thelatter in proper a corner of the pilaster.

CARL A. K'ARELIUs,

position with-respect to v

